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(24 x 36) Mammal Evolution Educational Chart Poster

(24 x 36) Mammal Evolution Educational Chart Poster

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Thieducational and decorative content-intensive p illustratemammal evolution. Mammalare an outstanding example of adaptive radiation, the procesby which organismevolve into a multitude of forms. Thip explorethat subject, and it showthe results. It beginwith the first tetrapod(terrestrial vertebrate), then it showand explainhow they evolved into three basic groupbased on skull characteristics. The synapsidwere the last group to evolve, and they were the most adved. They evolved around 324 million yearago. They are often referred to athe stem-mammalor proto-mammals. They were the dominant and largest terrestrial vertebrateduring the Permian, 299 to 251 million yearago. Changein the planet resulted in their m extinc- tion. The reptileadapted to fill the ecological nichethey left behind. The result waa world dominated by dinosaurs. The earth changed again around 65 million yearago, and the dinosaurbecame extinct. The few surviving synapsidadapted into modern mammals, which are also clified asynapsids.

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